Fool Moon is the second installment in the series, published in January 2001. It is available in paperback (now with new cover art by Christian McGrath), in audio format (read by James Marsters and released by Buzzy Multimedia), and in the Sci-Fi Book Club onmibus Wizard For Hire with Storm Front and Grave Peril.
The following blurb is printed on the back cover:
Business has been slow. Okay, business has been dead. And not even of the undead variety. You would think Chicago would have a little more action for the only professional wizard in the phone book. But lately, Harry Dresden hasn't been able to dredge up any kind of work—magical or mundane.
But just when it looks like he can't afford his next meal, a murder comes along that requires his particular brand of supernatural expertise.
A brutally mutilated corpse. Strange-looking paw prints. A full moon. Take three guesses—and the first two don't count… .
This book introduces recurring characters Billy Borden, his girlfriend Georgia, and the rest of the Alphas.